I would suggest before you go any further, do some research. You want to have some idea of what you're getting into and at this stage, but your own admission, you know nothing.
The R32 was produced in late 80's through to early 90's. R33 was produced early 90's to late 90's. The R32 is 2 litre and R33 is 2.5 litre. There is so much info I can give its just not funny. The thing is you need to look it up. Look through the forum. There is a search button at the top of the page that will help. Also look through google for info and go to carsales to get an idea on prices. Know what you're getting into. If you're buying one of these cars, and expecially if you're modding it, its an expensive game. Know what you're getting into.